tdaemon2.c

来自「unix环境高级编程的源代码」· C语言 代码 · 共 20 行

#include    "ourhdr.h"

int
main(void)
{
    char    *ptr, buff[MAXLINE];

    daemon_init();

    close(0);
    close(1);
    close(2);

    ptr = getlogin();
    sprintf(buff, "login name: %s\n",
                    (ptr == NULL) ? "(empty)" : ptr);
    write(3, buff, strlen(buff));
    exit(0);
}